In February 2019, British post-punk band IDLES—at the peak of the Joy as an Act of Resistance tour, an album that became a manifesto of anti-fascist rage and humanism—joined London’s Heavy Lungs for a special KEXP session during International Clash Day at Studio 9294 in Hackney Wick, London. Their 30-minute collaborative set, captured in high quality before a small audience, embodied the London leg climax, where Lee Kiernan and Oliver Hayward's aggressive riffs merged with Joe Talbot's emotive delivery to evoke street rebellion in a studio setting. Featuring tracks like "Danny Nedelko" and "Never Fight a Man With a Perm", this performance highlighted IDLES' role as a generational voice, turning the studio into a realm of collective unity.